memblock_search_pfn_nid  220 include/linux/memblock.h int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
memblock_search_pfn_nid 6244 mm/page_alloc.c 	nid = memblock_search_pfn_nid(pfn, &start_pfn, &end_pfn);